HYDROGEN PEROXIDE DECOMPOSERASC SUPER 25

MGC Advance co.,Ltd.

◆ What is ASC SUPER ?
ASC SUPER is a hydrogen peroxide decomposing agent, consisting from the enzyme that decomposes
hydrogen peroxide to harmless water and oxygen.

Enzyme acts as a biocatalytic promoter, is made byfermentation and is an environment-friendly product.
ASC SUPER

2 H2O2O2 + 2 H2OPeroxyacetic acid, utilized in the sterilization of food-packages and medical bags, is a solution underequilibrium conditions between peroxyacetic acid and hydrogen peroxide.
ASC SUPER secondarily decomposes peroxyacetic acid to acetic acid , water and oxygen gas via hydrogenperoxide.

CH3COOOH + H2OASC SUPER (ASC as alkari condition)

CH3COOH + H2O2

CH3COOH + H2O + 1/2 O2

The treatment method of the waste water containing peroxyacetic acid by hydrogen peroxide decomposing
enzyme is our original techniques.

◆ High performance of ASC SUPER 25
ASC SUPER is an excellent hydrogen peroxide decomposing agent that has a heat- and pH- tolerance,and storage stability. Therefore, it has a wide range of applications in the industrial use, and moreover, it ispossible to decompose hydrogen peroxide with a small amount of ASC SUPER 25.
● Storage stability● Optimal temperature● Optimal pH

100

100

1008060
40
20

Relative activity (%)

120

Relative activity (%)

120

Relative activity (%)

120

80

60

4040001 2 3 4 5 6 7 8 9 10 11 12pH60

20

2004℃
30℃
50℃

80

102030 40 50 60
Temperature(℃)

7080012345Storage period (month)6◆Waste water treatment in semiconductor plant◆ General properties and Safety data

Hydrogen peroxide is used as cleaning agent inAppearance

Light brownish liquidOdorSlight odor of alcohol

semiconductor

pH5.5 － 7.5hydrogen peroxide often causes following troubles inSolubility

Soluble in water at any rate

waste water.

orbeverage

plant.

However,this(a) Source of COD (Chemical Oxygen Demand)

Acute toxicity
Acute oral LD50 (rat) - more than 2,000 mg/kg

Hydrogen peroxide is liable to be broken down using
potassium permanganate and the following chemical reaction◆ Aim of ASC SUPER 25 addition volume

oxygen demand (COD).

(approximation)(b) Cause of Flocculate-Float

Reaction Time / Addition volume of AS-25

H2O2conc. (%)

create what is measured in the laboratory as the Chemical

15 min30 min60 min

3.0 %0.80 L/m3

0.70 L/m3

0.60 L/m3

1.0 %

0.60 L/m3

0.50 L/m3

0.40 L/m3

0.1 %0.25 L/m3

0.20 L/m3

0.15 L/m3

Hydrogen peroxide is gradually decomposed by itself withgenerating oxygen bubbles in waste water sedimentation tank.
In the sedimentation tank, this oxygen bubble makes theflocculate-float.

Hydrogen peroxide also attacks polymer

coagulants and destroys the flocculate.
(c) Damage to Biological Treatment ProcessAs hydrogen peroxide is widely used as a washing and◆ Application of ASC SUPER 25sterilization reagent, it is harmful to biological treatment

in water and wastes fields
1) Make sure that the concentration of hydrogen
peroxide is less than 5% (to avoid an abnormal
generating heating and bubbling).
2) Make sure that pH and temperature is within thelimits.
3) Add adequate volume of ASC SUPER 25 to waste
water with stirring.
4) Have a reaction time sufficiently (more than 30min).
NaOH aqLSM(activated sludge) at high concentration.
Therefore, it is necessary that hydrogen peroxide isdecomposed to avoid such troubles.

★ Storage
Store with an airtight container★ PackagespH● 1,000 kg container

Waste water

PASC SUPERtank

Disposal tank●200 kg drum●

20 kg poly can●

18 kg atron can●

1 kg petRead SDS (Safety Data Sheet) before use.

PFigure Outline of flow of ASC SUPER in wastewater treatment

MGC Advance co.,Ltd.